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25 June, 03:20

Adam can do a job in 10 days, while brenda takes 15 days to do it. after brenda works alone for 3 days, adam and brenda work together to finish the job. how many days did adam work?

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Answers (2)
  1. 25 June, 04:11
    0
    The number of days

    = [1 - (3/15) ] / (1/10 + 1/15)

    = (4/5) : (1/6)

    = 24/5

    = 4 4/5
  2. 25 June, 06:43
    0
    = [1 - (3/15) ] / (1/10 + 1/15)

    = (4/5) : (1/6)

    = 24/5

    = 4 4/5
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